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### Question: How to know you have Laron syndrome?
### Response: Blood hormone tests, including the level of growth hormone (GH), insulinlike growth factor-1 (IGF-I), insulinlike growth factor binding protein-3 (IGFBP-3), basal GH, and GH binding protein (GHBP). Other tests invlove an IGF/IGFBP-3 generation test and provocative GH test. The doctor will manage the test and explain the results to you. Blood glucose and lipid test: It may show hypoglycemia and hypercholesterolemia in patients with Laron syndrome. A bone age test: For children suspect Laron syndrome, dual energy x-ray absorptiometry (DEXA) scans can be used to determine bone age. Cranial MRI: The goal of cranial MRI is to rule out growth hormone deficiency caused by other damages, such as tumor or injure in hypothalamus and pituitary glands.